add validation file, 10 sentenced documents

Upload dataset_infos.json with huggingface_hub

Upload data/train-00003-of-00004-6acbc99c571054cf.parquet with huggingface_hub

Upload data/train-00002-of-00004-b7b50f79ef9b2c9d.parquet with huggingface_hub

Upload data/train-00001-of-00004-c58f008ddf674252.parquet with huggingface_hub

Upload data/train-00000-of-00004-065c519ea3d3a039.parquet with huggingface_hub

Create README.md

Upload validation_eli5-documented-5SentencesDocuments.csv

Upload test_eli5-documented-5SentencesDocuments.csv

initial commit